Ring traveler



P. C. WENTWORTH RING TRAVELER. APPLICATION 111E 11 JAN. 11. 1921.

L153069 Patented May 9, 11922,

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PEILE C. WENTWORTH, OF PROVIDENCE, RHODE ISLAND.

me TRAVELER.

' To all whom it may concern specifications have had fault which by Beit known that I, PHILIP C. VENT- won'rrr, a .citizen of the UnitedStates, residing at g State of Rhod'e Island, have invented certain newand useful Improvements in Ring Travelers, of which the following is aspecification.

This invention relates to ring travelers for use in ring spinning ortwisting and paticularl'y to the construction of such a device in suchmanner as to avoid or eliminate the loading of the traveler by lint orfly or otherwise.

During the years in which ring spinning and twisting have beendeveloping there havebeen marked advances and many refinements in theart. The ring traveler itself has formed the subject matter of someimprovement, but on the whole has retained its original simplicity. Inthe production of ring travelers, however, and. in their use, refinementas to v carried to aconsiderable degree. 'The relation of the weight ofthe trave'lerand the retardant effects of both weight and air resistancehave been known and ring travelers have fora long time been manufacturedon the strictest specifications;

One of the specifications most insisted upon has been exactness ofweight. Other to do with air resistance and others have had to do withwear and serviceability point. 7 I

Throughout all these years of the development of ring spinning andtwisting there has been present a well known common its general natureseems to have been regarded as unavoidable. This in both spinning andtwisting has been the loading of the traveler travelers have beenobvious.

by such fine particles of fibre or filament as are usually termed fly orlint. The degree 'of loading of travelers has varied principally withthe nature of the yarn being spun or twisted. Short staples have beenthe principal oflenders in vthis regard, although there is a tendencyeven with the longer staples for the traveler ultimately to load.

The results of such loading have been well known. The resultantvariation from the original carefully specified weight of the In thesame way the change in air resistance between the Specification ofLetters Patent.

Providence, county of Providence,

certain matters have been from the operating stand- Patented. May 9, 1922.

Application filed January 11, 1921. Serial No. 436,585.

loaded and unloaded traveler has been easily recognized. The resultshave been broken end, waste and delay, and a general upsett1ng of exact.calculations to produce perfeet spinning or twisting conditions.

In spite of the fact that the problem has been generally recognized butlittle has been attempted to overcome it.

cleaners have been produced which have attempted to knock from thetraveler its load and thus restore or partially restore it to itsoriginal weight. Such method, however, of cleaning or clearing therapidly moving traveler by physical contact with a stationary body is byits very nature difficult. While such devices have been installed theyhave in actual practice been used with poor eflect, especially as suchdevices really require fine adjustment for each different size oftraveler that might be run on a frame or on a set of frames 1n any mill.

Only a crude adjustment of such devices is possible and under any crudemethod of adjustment these devices are worthless.

My invention contemplates the construction of a traveler which in itsoperation will avoid this loading and thus maintain the traveler at itsdesired weight, thus making clearing or cleaning unnecessary as mytraveler at alltimes remains clean. The importance of maintaini thetraveler at all times clean and clear without alternating phases ofloading and discharging will be obvious to.all those skilled in the artand to all others who can appreciate the desired nicety in theconstruction and adjustment of the elements employed in this kind ofwork.

There are certain other features involved in my invention which are atonce incidents of the general embodiments contemplated by my'inventionand at the same time important features in such travelers are consideredas articles of manufacture and as practical operating equipment. Thesefeatures have to do principally with maximum durability of the horns ofthe traveler and the greatest possible resiliency in the circles of thetravelers in are flexed when being sprung over the flanges of the ring.

WVithout attempting to enter further into the general scope of thepurposes of my invention, I shall proceed at once to the disclosure ofcertain characteristic forms and Certain so-called 'by the yarn Y has atendency to a description and discussion of the same as bestillustrating my invention. Throughout the specification and drawingslike reference characters are employed to indicate corresponding parts,and in the drawings:

Figs. T, H and TH, respectively, are side, end and top "iews of atraveler in accordance with my invention.

Fig. Fl is a diagrammatic view illustrating the position of the traveleron the ring relative to the spindle.

Fig. V a fragmentary view of a ring with traveler positioned thereon asin operation.

Figs. VT and TH are top views showing further modifications of mytraveler, and

Fig. Ylllll is aside view of FigVllll.

Referring first to Figs. ll. TI and TH as a very satisfactoryillustrative embodiment, l have indicated at 1 what may be referred toas the body of a standard type of traveler The traveler 1 comprises acenter or circle portion 2 and a terminal or end portion or horns 3. Inpractice ll provide an opening a: cut through the traveler in the regionof its circle portion or according to the English terminology, its bow.

The result of this simple vent oropening' t is peculiar. It is of coursea matter of greatest difiiculty to give exact theories tor theperformance of-any part traveling at the high speed at which a traveleroperates. Without therefore committing myself to an exact theory, but inorder to disclose for-the benefit of others my own conclusions forwhatever benefit they, may involve, ll will endeavor to explainwhatseems to be the operation of such a traveler.

Referring to Fig. TV it will be seen that l have indicateddiagrammatically at R a plan view of the ring, and at S the spindle towhich passes the thread Y. T have indicated at 1 the traveler onthe ringR; Those familiar with' the performance of the traveler in spinningandtwisting need only be reminded that the loading of the traveler almostuniversally appears on that portion of the circle or bow adjacent to theouter upper edge of the upper ring flange. As is well known, thetraveler while theoretically floating free on the ring necessarily makesmore or less continuous contact between its inner horn and the lowerinner face of the upper flange of the ring. Furthermore, as is indicatedin Fig. V, the traveler as it is led tip forward due to the liftingaction or" the thread on its rear edge. These movements are but slightand while very difficult to prove positively with the traveler at speed.nevertheless T believe are generally accepted and at least ll find themsufiiciently supported in practice to constitute accept-able theories.

The tipping act-ion of the traveler 1 on the ring R brings the uppersurface of its circle or how portion 2 moreor less against the tect.

neiaoee resistance of the air. This exposes the slot or vent 4: to theaction of the air and admits what constitutes a draft directly into thetraveler itself and transversely or substantially transversely to thecircle-or bow over which the fibres of the load tend to drape themselvesin their normal accumulating ef- At this point it will .be noted thatthere is reasonable ground to suppose that the'lint or fly on thesurface of the yarn is more or less scraped off or tends to be scrapedoh by the edge of the circle of the travelerv under which it passes.Such tly once detached is subjected to several intluences whichaccording to my theory may be analyzed as follows: first, the tendencyof the rapidly moving yarn to comb the fiy through the traveler; second,the centrifugal tendenc of the traveler and all things moving with itthird, the backward air draft due to the rush ot'the traveler throughthe air. The components might very reasonably produce a resultant motionof the fibre to fold over the traveler with free ends trailing behindand move outward on the traveler until reaching the position in whichthey are usually found, i. e. onthe outer portion on the circle or bow.However much truth or error there may be in my analysis or theory, thefact remains that'll have been able to counteract and overcome thisloading tendency and to cause travelers to operateeven on short staplecottons without any loading whatsoever.

The slot 4.- illustrated in the traveler of Figs. l to UT inclusive ofthe drawing apstrong draft to parently admits or directs a theintermediate portion of any fibre which may find lodgmenton thetraveler. T believe that this draft striking the fibre at this placeclears the overfolded end and permits the fibre to be blown back andthus clear the traveler.

T have above referred to my invention as I preventative and it may bethat with this draft directed through the traveler that a large portionof vented from finding any lodgment on the traveler at all, but passesoil in the train on the revolving traveler.

'The draftthrough the slot 4 furthermore tends to cool the traveler andparticularly to keep the inner or contacting horn cooled and prevent itfrom heating by continued con tact with the ring as sometimes happens.

Further referring to Figs. T to HT inclusive, it will be noted that thecircle or how of the traveler thus provided with a central slot oropening is of considerably decreased'metallic body. This produces apeculiar and distinct advantage in the potential physical structure ofthe traveler as a manufactured article.

The traveler are manufactured from steel wireor steel tape being cut andformed the potential-load is prerapidly by automatic machines. Suchtravelers have however to be finished and particularly to be tempered.The wear on the inner horn of the traveler ultimately destroys itsusefulness and in fact as soon as wear begins to develop on the innerhorn a corresponding wear is developed on the.

adjacent contacted surface of the ring so that the less the traveler isreversed or changed the amount of metal at th1s part and so making thetraveler more flexible, and second, by reason of its increased radiatingsurface the opened up arch of the circle radiates the heat applied sothat it actually takes on a lower temper and i less liable to break.

The above principle apply to such modifications as are shown in Figs. VIand VII. In Fig. VI, there is substituted for the slot 4: a series ofholes 5 which have a similar function and result. In Fig. VII I haveshown a form in which I provide a double slot 6, 6 having anintermediate bar 7 which is preferably slightly depressed. Suchmodifications are shown as merely suggestive changes over the structureshown in Figs. I, II and III, but obviously a wide range of draftproducing apertures, surfaces or flanges might be made giving the sameor similar results to those described herein. As simplicity is so highlydesirable and the advantages of applicants preferred form are so many,this simple vented form is utilized herein as illustrative of theprinciples of my invention within which all other modifications must beunderstood as tion of lint on the traveler bow.

included if within the limits of the appended claims.

What I therefore claim and desire to secure by Letters Patent is:

1. A ring traveler comprising a ccirclc portion and terminal horns andhaving an opening through said circle portion.

2. A ring traveler comprising a circle portion and terminal horns andhaving a slotthrough said circle portion.

3. A ring traveler having an opening through its body portion.

4. A ring traveler and a draft producer carried thereby.

5. A ring traveler and a draft producer carried by the traveler betweenthe horns thereof.

6. A ring traveler comprising a bow portion and terminal horns,'and adraft producer between said horns.

7. In combination with a spinning ring, a ring traveler and a draftproducer mounted on said ring.

8. A ring traveler comprising a bow portion and terminal horns, andmeans disposed between said horns to prevent the accumula- 9. In aspinning unit, a ring traveler constructed and disposed to create acurrent of air across the traveler during its circuit of the ring.

10. A ring traveler, and means carried thereby to prevent accumulationof lint thereon.

11. A ring traveler comprising -a bow and horns, said traveler beingformed to discharge lint disengaged from the thread.

12. A ring traveler having a lint clearing area for discharging lintlodging thereon.

In testimony whereof I affix my signature in presence of two witnesses.

PHILIP C. WENTWORTH.

Witnesses:

Gno. B. RAWLINos, MARION F. WEISS.

